omg an antique monitora relic CRT monitor?????really?is it really MV320????or a typo.MV500s are CRT (heavy cathode RAY TUBES)you model is rare now, no photos of it by you.so...if not a CRT pig.then it must be a flat screen monitorthe first ones, up to year 2010 used crapppyCCFL back lamp tubes that are bad now. all are.(unless never used)call CCFL fail these ways.dim.white now yellowdead.blinks, or is intermittent,or strobes.l the backlamps CCLF tubes are dead. all do that, or just die .crt monitorsare junk and a fire hazard, trash it.CRT fails more wayssure dim,sure dead.but it has 3 guns , RGB , red green blue.the red gun loves to go weak first , red phosphorsare weak (a physics deal)one trick (long long ago is to up the red gun levels, to compensate.or lower Green/blue guns.gun means "electron gun" deep inside the CRT neckThe CRT has even more bad effects, failed.a huge endless list , if you want.we have it.with photos